Lemme describe it this way:

Two sine waves. Seven letters. They're all flying! ;-)


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@1012 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 139 insertions, 0 deletions

diff --git a/apps/recorder/bounce.c b/apps/recorder/bounce.c
new file mode 100644
index 0000000000..2b02ee8d07
--- /dev/null
+++ b/apps/recorder/bounce.c
@@ -0,0 +1,139 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2002 Daniel Stenberg
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#include "config.h"
+
+#ifdef HAVE_LCD_BITMAP
+
+#include "screensaver.h"
+#include "lcd.h"
+#include "button.h"
+#include "kernel.h"
+
+#ifdef SIMULATOR
+#include <stdio.h>
+#endif
+#include <string.h>
+
+#define SS_TITLE       "Bouncer"
+#define SS_TITLE_FONT  2
+
+unsigned char table[]={
+26,28,30,33,35,37,39,40,42,43,45,46,46,47,47,47,47,47,46,46,45,43,42,40,39,37,35,33,30,28,26,24,21,19,17,14,12,10,8,7,5,4,2,1,1,0,0,0,0,0,1,1,2,4,5,7,8,10,12,14,17,19,21,23,
+};
+
+unsigned char xtable[]={
+54,59,64,69,73,77,81,85,88,91,94,96,97,99,99,99,99,99,97,96,94,91,88,85,81,77,73,69,64,59,54,50,45,40,35,30,26,22,18,14,11,8,5,3,2,0,0,0,0,0,2,3,5,8,11,14,18,22,26,30,35,40,45,49,
+};
+
+#define XDIFF -4
+#define YDIFF -6
+
+extern const unsigned char char_gen_12x16[][22];
+
+static void loopit(void)
+{
+    int center = 0;
+    int b;
+    int y=0;
+    int x=16;
+    int yy,xx;
+    unsigned int i;
+
+    char rock[]={'R', 'O', 'C', 'K', 'b', 'o', 'x'};
+
+    lcd_clear_display();
+    while(1)
+    {
+        b = button_get(false);
+        if ( b & BUTTON_OFF )
+            return;
+#if 1
+        lcd_clear_display();
+#else
+        lcd_clearrect(xtable[x&63], table[y&63], 11, 16);
+        lcd_clearrect(xtable[(x+XDIFF)&63], table[(y+YDIFF)&63], 11, 16);
+        lcd_clearrect(xtable[(x+XDIFF*2)&63], table[(y+YDIFF*2)&63], 11, 16);
+        lcd_clearrect(xtable[(x+XDIFF*3)&63], table[(y+YDIFF*3)&63], 11, 16);
+        lcd_clearrect(xtable[(x+XDIFF*4)&63], table[(y+YDIFF*4)&63], 11, 16);
+        lcd_clearrect(xtable[(x+XDIFF*5)&63], table[(y+YDIFF*5)&63], 11, 16);
+        lcd_clearrect(xtable[(x+XDIFF*6)&63], table[(y+YDIFF*6)&63], 11, 16);
+#endif
+        y+=3;
+        x++;
+
+        yy=y;
+        xx=x;
+        for(i=0; i<sizeof(rock)/sizeof(rock[0]); i++, yy+=YDIFF, xx+=XDIFF)
+          lcd_bitmap((char *)char_gen_12x16[rock[i]-0x20],
+                     xtable[xx&63], table[yy&63],
+                     11, 16, false);
+        lcd_update();
+
+        sleep(HZ/10);
+    }
+}
+
+
+void bounce(void)
+{
+    int w, h;
+    char *off = "[Off] to stop";
+    int len = strlen(SS_TITLE);
+
+    lcd_getfontsize(SS_TITLE_FONT, &w, &h);
+
+    /* Get horizontel centering for text */
+    len *= w;
+    if (len%2 != 0)
+        len = ((len+1)/2)+(w/2);
+    else
+        len /= 2;
+
+    if (h%2 != 0)
+        h = (h/2)+1;
+    else
+        h /= 2;
+
+    lcd_clear_display();
+    lcd_putsxy(LCD_WIDTH/2-len, (LCD_HEIGHT/2)-h, SS_TITLE, SS_TITLE_FONT);
+
+    len = strlen(off);
+    lcd_getfontsize(0, &w, &h);
+
+    /* Get horizontel centering for text */
+    len *= w;
+    if (len%2 != 0)
+        len = ((len+1)/2)+(w/2);
+    else
+        len /= 2;
+
+    if (h%2 != 0)
+        h = (h/2)+1;
+    else
+        h /= 2;
+
+    lcd_putsxy(LCD_WIDTH/2-len, LCD_HEIGHT-(2*h), off,0);
+
+    lcd_update();
+    sleep(HZ);
+    loopit();
+}
+
+#endif